Finding the Fourth Proportional to 6,115.32, 8,439.24 and 3,320.82

Step by Step Solution

1. Step 1: Write the proportion equation
   6,115.32 : 8,439.24 = 3,320.82 : x
2. Step 2: Convert to fraction form
   6,115.32/8,439.24 = 3,320.82/x
3. Step 3: Cross multiply
   6,115.32x = 8,439.24 × 3,320.82
4. Step 4: Simplify right side
   6,115.32x = 28,025,196.98
5. Step 5: Solve for x
   x = 28,025,196.98/6,115.32
6. Step 6: Final answer
   x = 4,582.79